Sony Model DAV-SR4W - Manual (Page 95)

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Dolby Surround Pro Logic
As one method of decoding Dolby Surround,
Dolby Surround Pro Logic produces four
channels from two-channel sound. Compared
with the former Dolby Surround system, Dolby
Surround Pro Logic reproduces left-to-right
panning more naturally and localizes sounds
more precisely. To take full advantage of Dolby
Surround Pro Logic, you should have one pair of
surround speakers and a center speaker. The
surround speakers output monaural sound.
DTS
Digital audio compression technology
developed by Digital Theater Systems, Inc. This
technology conforms to 5.1-channel surround.
This format comprises of stereo rear channels
and a discrete subwoofer channel. DTS provides
the same 5.1 discrete channels of high quality
digital audio. The good channel separation is
realized due to all channel data being recorded
discretely and processed digitally.
DTS-ES
An enhanced compatible format of 5.1 channel,
which adds an extra surround back channel.
There are two formats: Discrete 6.1, which
processes the surround back signal
independently, and Matrix 6.1, which processes
it along with the Surround (L/R) channels.
DVD
A disc that contains up to 8 hours of moving
pictures even though its diameter is the same as
a CD.
The data capacity of a single-layer and single-
sided DVD, at 4.7 GB (Giga Byte), is 7 times
that of a CD. Furthermore, the data capacity of a
dual-layer and single-sided DVD is 8.5 GB, a
single-layer and double-sided DVD 9.4 GB, and
a dual-layer and double-sided DVD 17 GB.
The picture data uses the MPEG 2 format, one of
a worldwide standard of digital compression
technology. The picture data is compressed to
about 1/40 of its original size. DVD also uses
variable rate coding technology that processes
allocated data according to the status of the
picture.
The audio data is recorded in Dolby Digital as
well as in PCM, allowing you to enjoy more
realistic audio presence.
Furthermore, various advanced functions such
as the multi-angle, multilingual, and Parental
Control functions are provided with the DVD.
File
Section of a picture on a data CD containing
JPEG image files.
Film based software, Video based
software
DVDs can be classified as Film based or Video
based software. Film based DVDs contain the
same images (24 frames per second) that are
shown at movie theaters. Video based DVDs,
such as television dramas or sit-coms, displays
images at 30 frames (or 60 fields) per second.
Index (Super Audio CD, CD)/Video
Index (VIDEO CD)
A number that divides a track into sections to
easily locate the point you want on a VIDEO
CD, Super Audio CD, or CD. Depending on the
disc, no indexes may be recorded.
Multi-angle function
Various angles of a scene, or viewpoints of the
video camera are recorded on some DVDs.
Multilingual function
Several languages for the sound or subtitles in a
picture are recorded on some DVDs.
Neo:6
Developed by Digital Theater Systems, Inc.,
applies a conventional 2-channel or Dolby
Digital source signal to a high-precision, digital
matrix decoder to achieve 6.1 channel surround
playback.
CINEMA mode allows for more separation of
channels to enhance the 6.1 channel effect, and
is best suited for movies.
MUSIC mode allows the front L and R channels
to go unprocessed for optimum stereo, with the
addition of the surround components adding a
special quality to the sound.
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